I want to cut very thin slits in clear acrylic (for a motor tachometer encoder). Material thickness is 1.5mm (0.06") and the slit length will be 5mm (0.2") (not critical). I understand the laser cut kerf to be 0.007" to 0.01". If I draw the slit width at 0.01", it would appear from the design guidelines that I would end up with a slit 0.017" to 0.02" wide, ignoring the 1° draft on the sides of the slit. Is this correct?
Can such a thin slit actually be cut and come out as intended? What is the thinnest slit that can be made in this material? Could a slit be cut that is nearly as small as the laser kerf, for instance by drawing the slit to be 0.001" wide?